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Sphinxa [80]
3 years ago
13

Help me please!!!!!!!!!!!!!

Mathematics
1 answer:
AnnZ [28]3 years ago
8 0

For this case the vertex of the parabola is the point at which the parabola presents a minimum.

The parabola presents a minimum in this case, because the parabola opens upwards.

The vertex is then a minimum.

The vertex of the function is located in the following ordered pair:

(x, y) = (1, -1)

Answer:

(x, y) = (1, -1)

minimum

Option A

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Is (0.3) the solution to the equation y=x+3
Goryan [66]

Answer:-3

Step-by-step explanation:Could it be -3 if your learning about intercepts I need more information to help you further

7 0
3 years ago
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Charlotte recorded the number of minutes she spent exercising in the past ten days: 9, 13, 5, 2, 9, 1, 14, 3, 5, 7. Find the med
Nuetrik [128]

Answer:

<u>The median is 7.</u>

Step-by-step explanation:

In order to find the median, you need to ut the numbers in either least to greatest form, or greatest to least (FIRST).

I'm gonna do both as an example.

Greatest to least:

14, 13, 9, 9, 7, 5, 3, 2, 1

Least to greatest:

1, 2, 3, 5, 7, 9, 9, 13, 14

<u><em>It is REALLY important that you use ALL of the numbers you are given, even if there are two or more of the same number.</em></u>

The next thing you need to do is find the number that is in the middle.

It will be the same for both least to greatest AND greatest to least.

You can either count one from either side, going in a pattern, OR you can count how many there is, divide it by 2, and whatever answer you get, count that many times over from one side.

In this case, your answer goes like this:

since there are 9 numbers, and 9 is not an even number, you will have only one median. Having 2 medians IS normal and it IS ok.

In this case, you want to go down one number (from 9) and divide that. So you do 8 divided by 2, which is 4. Count that many times over and you have your answer, 7.

I hope this helped you!

Have a great dayyyy

5 0
3 years ago
Which of the following choices is the simple formula for the nth term of the following arithmetic sequence?
kkurt [141]
\bf 7~~,~~\stackrel{7-4}{3}~~,~~\stackrel{3-4}{-1}~~,~~\stackrel{-1-4}{-5}~~,~~\stackrel{-5-4}{-9}~~,~~...

so namely, the "common difference" d = -4, and the first term a₁ = 7.

\bf n^{th}\textit{ term of an arithmetic sequence}&#10;\\\\&#10;a_n=a_1+(n-1)d\qquad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;d=\textit{common difference}\\&#10;----------\\&#10;d=-4\\&#10;a_1=7&#10;\end{cases}&#10;\\\\\\&#10;a_n=7+(n-1)(-4)\implies a_n=7+(4-4n)&#10;\\\\\\&#10;a_n=11-4n\implies a_n=-4n+11
8 0
3 years ago
Josh needs to cover a rectangular opening of 12 inches × 18 inches with plywood. how much will he need, in square feet, if he wa
Whitepunk [10]

we know that

1 ft is equal to 12 in


step 1

dimensions of plywood required

(12+3+3) x (18+3+3)------> 18 in x 24 in


step 2

convert inches to feet

18 in-------> 18/12=1.5 ft

24 in------> 24/12=2 ft


step 3

area of plywood required

A=b*h------> 1.5*2------> A=3 ft²


the answer is

3 ft²

5 0
3 years ago
This acc still exists?
qaws [65]
I guess so. . . . . . .
8 0
2 years ago
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